Pump



June 24, 1930. w, GARDNER 1,766,499

PUMP

Filed Feb. 1. 1927 Patented June 24, 1930 OF F ILCE JOHN GARDNER, v0FQUINCY, ILLINOIS, ASSIGNO'R, BY MESNE ASSIGNMENTS, TO .GARDNERTDENYERCOMPANY, A CORPORATION OF DELAWARE PUMP application filed February1,1927. Serial No. 165,084.

.idy invention. relatesv to pumps.

Itzhasdor its object toiprovide improved A .fu-rtherobject of 'my ofslush along the piston rod is reduced, and whereinthe slush .IS'WlPGClfromthe rod, prevented; from. entering the crosshead bearings and thelubricating system, and

caused to be discharged from the pump, all

in lanimproved manner. A more specific object oflmy invention istoprovide an improved slush wiping and discharging member functioning towipe; the slush from the piston rod and cause the discharge of the samefrom the pump in an improved manner while protecting the crossheadguides and .the pump lubricating system from the entry of slush.

zlnxthe accompanying drawings I have shown for. purposes ofillustration, one, em-

bod-.iment which my invention may assume in practice.

Inrthese drawings,- Fig. 1 is apartial longitudinal sectional view of apump. equipped with my, improvezments;

.Fig. 2 is. aztransversesectional view on line-22 ofFig. 1,-and

Fig. '3is a perspective view of myimproved "wiping member.

IIn this illustrative construct1on,-the 1nvention .is disposed betweenthe cylinder 1 and theucrosshead.guidei2 oi apump and associated withiapiston rod 3 operatively connected between the crosshead t and the :pumppiston (not shown) the same being .located between the ends .ot'rthecylmder :and of the crossheadegulderand involving an improvedconstruction;hereinafter. de-

In;myimproved construction, ini-addition head,.improved slushcontrolling connections which'function further to reduce the amount.ofslush finding its wayalong the rod 3, and :further also act to wipeoff any slush which does ;find its .wayalong. thepiston rod, and

to discharge this slush from the pump, thus preventingit from reachingthe crosshead guides and the general lubricating system of the pump.Herein it will be noted that I have provided a member 7 ,preferably ex-:ternally flanged, adapted tobe suitably atta-ched, as by threading, toan upstanding or septum.member 8 carried on the frame,

.and suitably spaced from the packing gland *6 on the cylinder head.

This member 7 herein also has an annular. groove surrounding 1ts innerwiping surface and forming internal sleeve --or hub 9 which is in turnbored to permit the passage of the piston rod ;-and provided at itsouter end with a -,suit able surrounding packing bore 10 adaptedtoreceive suitable packing and a gland 11 sreadily accessible in theopen space between the sameand the cylinder head. vHerein, the

sleeve9 so fits the piston rod,-as at 12, that, while permitting freemovement ofthe lat- .ter, any slush passing through the two sets ofpacking is wiped 01f of the rod as the latter ,is withdrawn, i. e. movesto the right to the position indicated in Fig. 1.

To facilitate removal ofthiswipecl'oflt' ,slush, Irprovide .an opening13 below the -w1-p;1ng edge 12 and a communicating chamber 14 insidetheframe member 8 on the frame and leading downward to a bottom theaperture 13 is formed between two proections 16 on the under side of themember 7, and these projections 16 are disposed inan are adjacent thelower end of the annular gro'0ve and so sloped toward the aperture'13.;that, should any slush fall on them,'it -will1also be dischargedthereby through the aperture .113.

-Here,.attentionis also directed to the fact that; anupstandingtransverse lip 17 is pro- :Vl Cl6d-OI1: a -septunr18wh1chprojects part- ..way upward from the crossheadguide and serves toprovide a lubricant pocket 19 at the end of the lower crosshead guideand space the same from the slush passages 13, 14 and 15, this lip 17herein being so disposed as to prevent the entry of slush into thepocket 19 and the crosshead guide, and its resultant generaldistribution in the pump lubricating system, while still permitting freepassage of the rod 3 and its usual connections to the crosshead. Herein,the projections 16 carry on their ends adjacent the crosshead, anarcuate connecting member forming the transverse lip 17 and having aconcave upper edge 20 adapted to permit the free passage of the nut 21connecting the piston rod to the crosshead, and also having a convexlower edge resting upon a correspondingly shaped seat in the septum 18,the construction being such that the member 17 may be withdrawn bodilywhen desired.

Thus it will be observed that any slush which find its way through thepacking 5 not only may be wiped oil by the wiping action of the gland 6or that of the gland 11 and fall out through the space between thecylinder and the wall 8, but that the packing held in position by thegland 11 also acts to prevent the passage of slush further along therod. Should slush, however, pass through the means mentioned above, it.will be wiped off on the edge 12 on the member '7 and flow down thelatter member toward the outlet 15, the annular is discharged from thepump at a point below groove, surrounding the hub 9, then helping tokeep any slush on that side of the passageway. Should any slush find itsway laterally from the outlet 13, this will in turn be fed downward bythe inner surfaces of the projections 16, while, should any slush findits way toward the crosshead side, it will be prevented from enteringthe crosshead guides, not only by the lip 17 on the member 7, whichincreases the etl'ective height of the member 18, but by the body of themember 18. Thus it will be observed that not only is the passage ofslush along the rod minimized, but any slush finding its way to thecrosshead end of the rod is wiped therefrom at that point and s0confined and directed by my improved construction that it cannot findits way into the crosshead bearings and the lubricating system of thepump, but, instead,

the rod and crosshead, where it can do no harm.

Attention is also directed to the fact that in my improved construction,in addition to the advantages mentioned above, loss of oil through theslush discharge is also prevented by the portions 17 and 18 and there isno danger at an time of the slush passages being clogge the passagesbeing of ample size and so disposed as to permit free passage of thesame for an indefinite time and also so accessible as to be capable ofbeing readily cleaned from above whenever desired. It will also beevident that the construction may be very readily embodied in a pump,all of the parts shown in this illustrative construction other than themember 7 and the packing means associated therewith, being cast on thepump frame and certain of the parts of the latter also being capable ofbeing formed on the pump frame, if desired, though the provision of these arate member 7 is preferred, the part 7 being of a type adapted to bereadily and cheaply manufactured and readily inserted or removed ifdesired. These and other advantages of my improved construction will,however, be clearly apparent to those skilled in the art.

\Vhile I have in this application specifically described one embodimentwhich my invention may assume in practice, it will be understood thatthe invention may be modified and embodied in various other formswithout departing from its spirit or the scope of the appended claims.

\Vhat I clailn as new and desire to secure by Letters Patent is:

1. In a pump including a piston rod, a wiping member extending aroundsaid rod, and a frame supporting said wiping member presentingdownwardly directed drain passages on opposite sides thereof external ofthe pump mechanism.

2. In a pump including a piston rod, a wiping member extending aroundsaid rod, and a frame supporting said wiping member presentingdownwardly directed drain passages on opposite sides thereof, externalof the pump mechanism, one of said passages having a septum between thesame and one working end of the piston rod.

3. In a pump, a cylinder head, spaced septums spaced from said headhaving provision for piston rod movement relative thereto, and includinga septum extending substantially into the path of the rod, and a wipermem er for said piston rod carried by the other of said septums anddischarging slush in the space between the same.

4. In a pump, a frame comprising spaced septums having provision forpiston rod movement relative thereto and including a septum extendingsubstantiall into the path of the rod, a wiper member or said piston rodcarried by the other of said septums and discharging slush in the spacebetween the same, and slush deflecting means in said space carried bythe wiper.

5. In a pump, a frame comprising spaced septums havingl provision forpiston rod movement relative thereto, a wiper member carried by one ofsaid septums discharging into the space therebetween, and meansproviding a wall forming a continuation of the other septum carried bythe wiper and ex- 'stendin'gainto adjacency to the path of the pistonrod.

,:6.;;In.a pump a framc comprising spaced septums shavin'g provision forrpiston rod miovement relative thereto, and a w per member carried 133 20116 ofsaidseptu-ms discharg- :.-in'gxtherebetwveenandprovided with aWall .iobminga continuation of the other, said a-ineinber L-beingprovided "between its body and said Wall with a slush aperture below its.wv-ipingasurface.

v7. In .1a rpnmp, 2a Jframe comprising :spaoed aseptums having provisionfor piston rod movement:relative thereto, :and a wiper .inember carriedby one of said sep- Ltirms [discharging .there'between :and providedwitha Wall forminga continuation of *theother,. =said' member being providedbe- .tween iitsbody andsaid wall with portions tending to 1 divert slushlaterally.

8.111 a ipu'mpya cylinder, a' crosshead ,zgnide, spaced'septums spacedfrom the cylinderavalliand oneprotecting the end-of theCI'OSS='.'l'l2I(l'Jg1liCl6 :and forming a lubricant chanibei on one sideofithe same extending substantially above the l2tt8l, -il1l a slushpassage on the opposite side thereof, and a :uviperiinemberscarried bytheother of said septnms .and discharging slush into the :space betweensaid septums.

'9. Inga puinp,xa stationary frame pr senting spaced septums-a-nd:having a lubri- -cant chamber on one side ofoneof the same sand a slush-.passage on the :opposite side 0 thereof, and a Wiper member carried bythe other-of said septums discharging slush into "the space betweensaids septums and carrying 'a continuation of-said first mentionedseptums.

10. In combination, a cylinder head, a

- crosshead guide, spaced therefrom having an upwardly 13101805111g'l11)at ltS end forming 5& lubricant pocket, a \Vitll'SPZtCGClifI'OIH said11p and :forming aslush passage therebetween, a crosshead'movablein-said guide and :having :a -l'O(l'2111OVllOl6 through saidhead,-n1eans formingia continuation ofsald lip extending into adjacencyto said and, and a .rod :Wiper carried by said Wall and discharging intosaid passage.

11. In combination, crosshead guide having an upwardlysprojecting lip atits endiforniing a lubricant pocket .andextend- -5ii1g; substantiallyintothe path of the crosshead rod, a Wall spaced from said .lip andiorminga slush passage therebetween, a

crosshead movable in said guide and having :a' rod, anda rodW1percarr1edby fSitlCl :Wfilll and having a Wiper surface substantiallycoincident wvith. the inner surface of sald Wall and discharging-intosaid passage.

'12. In combination crossh'ead uide 1 u c a having aniupwa'rdlyprojecting lipnat its end forming a 'lllbllGiLIli; pocket, -a Wallspaced from said lip and forming-2a slush.

passage. therebetween, a crosshead movable insa-i'd guideand havinga'rod, and arod .wvipericarried by said lastmentioned Wall vanddischarging into said passage, said Wiper having; laterally spacedslushdeflecting surfaces delivering to said passage.

13. In combination, a cylinder head, a crosshead guide, spaced therefromand 'hav- .ing an upwardlyprojecting lip at itsend forminga lubricantpocket, ;a wall spaced fromsaidxlip and forininga slush passagetherebetweeina crosshead movable in said guide and having a rod movablethrough sazidsihead,*and arod Wiper carriedby said last mentioned Walland discharging into said passage, vsaid wiper carrying a Wall spacedtherefrom and forming a continuation ofsaidlip.

1%. In combination,-a cylinder head, a crosshead guide spaced-therefromand havforming a lubricantpocket, aavall spaced from said hp andvforming a slushpassage therebetweeii, a crosshead movable, in said-therebetween, a crosshead movable in'said guide and having a rodmovable through said head, and a rod Wiper carrled by said lastmentioned W2lll'-2L11Cl removable thereth-rough carrying means forming'acontinuation of said lip and slush deflecting means leading to saidpassage.

.16. Aslush Wiper for pumps comprising a aviper bodyadapted to permitthe passage of a piston rod and having laterallypaced therefrom aprojecting transverse lip-and slush; passage-nieansbetween the same andsaid body.

17. A slush Wiper tor pumpsconiprising a wiper :body'adapted to permitthe passage ofa piston rod andliavingvlaterally spaced,

therefronra; projecting lip extending into adjacency to said rod, andslushpassage -means between the said lip and said body and slushdeflecting means leading to. said passage means. 1

:18. A slush vvip'er comprising -a wiper body having adjustable packingmeans adjustable from one side thereof and adapted-to vpermit thepassage of a piston rod, a transversely extending lip laterally spaced Itherefrom on the opposite side wthereofand also adapted to permit pistonrod passage and slush passage means, be- -=tWeensaid lip =-and saidbody.

19. A-slush :wiper comprisinga wiper 1' 111g an upwardlypro ecting 11pat ltSweDIl body adapted to permit the passage of a piston rod, atransversely extending lip laterally spaced therefrom and disposedwithin the limits of said body and also adapted to permit piston rodpassage and slush passage means between said lip and said body, said lipbeing connected to said body by spaced connecting members.

20. A slush wiper comprising a wiper body adapted to ermit the passage 0a piston rod and aving a transverse lip spaced therefrom and extendinginto adjacency to but terminating short of the rod and slush passagemeans between the same and said bod 21. A slush wiper comprising a wiperbody adapted to permit the passage of a iston rod and carrying packingand a packing gland accessible from one surface thereof and having onits opposite surface means forming a slush aperture and a laterally acedtransverse lip.

22. A slush wiper com rising a wi er body adapted to permit tie passage0 a iston rod and carrying packing and a packing gland in one surfacethereof and having on its opposite surface means forming a slush aerture and a spaced lip, said lip being dis osed within the limits ofsaid wiper and removable bodily therewith.

23. In combination, a cylinder head, a crosshead guide spaced therefrom,a crosshead in said guide having a rod, wiper means for said rodadjacent the cylinder head, wiper means for said rod spaced therefromand adjacent the end of said crosshead guide, and a septum between theend of said crosshead guide and said last mentioned wiper means, formingon one side means for confining the lubricant to the crosshead guide andon the other a slush passage discharging slush collected by that side ofsaid last mentioned wiper means which is toward the crosshead guide.

24. In combination, a cylinder head, a crosshead guide spaced therefrom,a crosshead in said uide having a rod, wiper means for sai rod adjacentthe cylinder head, wiper means for said rod spaced therefrom andadjacent the end of said crosshead guide, and a septum between the endof said crosshead guide and said last mentioned wiper means forming onone side means for confining the lubricant to the cross head guide andon the other a slush passage, discharging the slush collected by theside of said last mentioned wiper means which is toward the crossheadguide, said septum extending upward into adjacency to said piston rod.

25. In combination, a cylinder head, a crosshead guide spaced therefrom,a crosshead in said guide having a rod, wiper means for said rodadjacent the cylinder head, wiper means for said rod spaced therefromand adjacent the end of said crosshead guide, a septum between the endof said crosshead guide, and said last mentioned wiper means forming onone side means for confining the lubricant to the crosshead guide and onthe other a slush passage, and means removable with said last mentionedwiper means, forming a part of said se tum, and extending to a pointadjacent sai piston rod.

26. In combination, a cylinder head, a crosshead ide spaced therefrom, acrosshead in sai guide having a rod, wiper means for said rod adjacentthe cylinder head, wiper means for said rod spaced therefrom andadjacent the end of said crosshead guide, a septum between the end ofsaid crosshead guide, and said last mentioned wiper means, forming onone side means for confining the lubricant to the crosshead guide and onthe other a slush passage, and means removable with said last mentionedwiper means forming a part of said septum and extending to a pointadjacent said piston rod and rovided with slush deflecting surfaces leaing to said passage.

27. In a pump, a crosshead guide, a crosshead including a rod and apluraliy of spaced septums adjacent the end of the crosshead guide, thenearer septum proteeting the crosshead and the other carrying wipermeans on each face thereof cooperating with the crosshead rod, and aslush drain on each side of the latter septum removing the wiped offslush.

28. In a pump, a cylinder head, a crosshead uide, a crosshead includinga rod movable tIirough said head, a packing gland for the rod carried bythe cylinder head, spaced septums external to and spaced from thecylinder head and adjacent the end of the crosshead guide, said septumsforming a slush discharge drain between them and one of the samecarrying a wiper acting on said rod and delivering to said drain and theother inhibiting the passage to the crosshead guide of slush wiped offby said wiper.

29. In a pump, a piston rod, means presenting spaced septums including aseptum extending substantially into the path of the piston rod, and awiper member for said rod carried by the other septum and having agroove adjacent a wiping surface thereof delivering slush into the spacebetween said septums.

30. In a pump, a piston rod, means presenting spaced septums including aseptum extending substantially into the path of the piston rod, a wipermember for said rod carried by the other septum and having an annulargroove surrounding the wiping surface thereof delivering slush into thespace between said septmns, and slush deflecting means in said spaceadjacent the lower end of said groove.

31. A slush wiper comprising a body adapted to permit the passage of apiston rod and having therein a groove around a portion of its wipingsurface.

32. A slush wiper comprising a body adapted to permit the passage of apiston rod and having therein an annular groove around its wipingsurface.

33. A slush wiper comprising a body adapted to permit the passage of apiston rod and having therein an annular groove around its Wipingsurface and slush deflecting means adjacent the lower end of said groovereceiving and guiding away slush wiped off by said surface.

34-. In combination, a crosshead guide, a crosshead havin 'a rod, awiper for said rod adjacent the end of said guide, and means forpreventing the mixture of slush with the crosshead lubricant includingprovision for draining away out of the path of the lubricant the slushwiped 01f by the opposite faces of said wiper as the rod moves inopposite directions.

35. In combination, a cylinder head, a crosshead guide spaced therefrom,crosshead therein having a rod extending into the cylinder tirough saidhead, two wipers, one for the cylinder head and the other adjacent thecrosshead guide, and slush discharging means discharging out of the pathof the crosshead lubricant the slush collected by that face of thelatter wiper which is toward the crosshead guide.

36. In combination, a cylinder head, a crosshead guide spaced therefrom,a crosshead therein having a rod extending into the cylinder, twowipers, one for the cylinder head and the other adjacent the crossheadguide, and means for preventing mixture with the crosshead lubricant ofslush collected by that face of the latter wiper which is toward thecrosshead guide.

37. In combination, a cylinder head, a crosshead guide spaced therefrom,a crosshead therein having a rod extending into the cylinder, twowipers, one for the cylinder head and the other adjacent the crossheadguide, and means for preventing mixture with the crosshead lubricant ofslush collected by that face of the latter wiper which is toward thecrosshead guide, including provision for drawing off said slush.

38. A slush wiper comprising a body adapted to permit the passing of apiston rod and having in one face thereof a groove around a portion ofits wiping surface and a gland seated in its opposite face.

In testimony whereof I am my signature.

JOHN V. GARDNER.

